Saw blade



April 2, 1935. w. POLLEY 1,996,687

SAW BLADE I Fued May 24, 1933 WaZt67POZZe%NVENTOR ATTOR N EY Walter ,Polley, Mal-cola, Application May 24, 1933, Serial Ne. 672,713

' 1 Claim.] (01.143-133 This invention relates to saws, and its general v groups, so that a'rakertooth 5 willi bedis'posed i betweenueach of the groups of cutting teeth-ff. p '1 I object'is to provide a saw blade with double and single pointed raker or clearing teeth arranged with respect to groups of cutting teeth in a man- 5 ner whereby thefsaw is capable of use in cutting easily and expeditiously with minimum effort and much faster and with more, efliciency thansaws.

now in general use.

Another object of the invention is to provide a saw blade primarily designed for use with power actuated portable drag saw devices, but can be used with any powerdriven unit, andissinij V plein construction, easy to sharpen, inexpensive to manufacture and extremely efficient for the purpose intended. i i l This invention also consists in certain other features of construction and in the combination of the arrows;

and arrangement of the several parts, to be hereinafter fully described, illustrated'in the accompanying drawing and sp ecifically'pointed out in the appended claim.

In describing my invention in detail, reference will be had to the accompanying drawing wherein; like characters denote like or corresponding'parts' Referring to the drawing in numeral I indicates the saw blade body, and it mightbe stated that I have illustrated thecen- "35 'tral portion of the blade, dueto the fact that the double pointed raker teeth are arrangedonly at the ce'ntralportion of the bladewhile the portions of the blade upon the oppositesides of the central portion are provided with single pointed raker teeth.. 1

In fact, in the form of the saw bladeshown,

I employ onlytwo double edged or pointed raker teeth, which are indicated by the reference numeral! and are arranged upon, opposite sides of and in spaced relation with respect to a group of cutting teeth 3 as W611 as a relatively, great. distance therefrom, as shown, while arranged upon the outer sides of the raker teeth 2 a relatively 1 great distance therefrom as well asifrom each other, asshown, are spaced groups of teeth, and each of the last mentioned groups include at least four cutting teeth 4 and one single edged or pointed raker tooth 5 which is disposed upon the outer side of the cutting teeth 4 in each oftheir detail, the reference It might be further statedQthat :at least four cutting teeth are emplo'yedin the group between teeth have their lower ends inclined outwardly i" ,toward one end of the blade, and the single p'oint-- ed r aker teeth on the oppositeside of the double pointed raker teeth have their lower ends inclined toward'the opposite endof the blade, so that their points orraking edges will be arranged ac cordingly, andthe single pointed raker teeth are "disposed outermost at one endyof the cutting v teeth 4 in their respective groups, as "clearly J,

shown in Figure 1.

The cutting teeth are'each provided with'thefl usual V-shaped lower end, with a portion pffOnleflside. beveled and the {opposite portion of lthe other side beveled, and these beveled portions:

Fromthe above description and disclosure of i f the drawing, it will be obvious thatI have provided a sawibladethat' iscapable of use incut ting, in an easy and expeditious manner with very little effort, due to the fact that the dis-, charge of saw dust from the kerf cut by my blade is unobstructed, therefore the cutting teeth. can perform their intended function withoutintreferencer I This advantageous feature is brought, about by thelparticular structureof the raker teethwhich are straight edged on the 3, and thearrangement of the other groups ,of

teeth, as shown. It will be noted from the drawing that the points of the raker teeth 2 are spaced from the points of the'teeth 3 several times the distanceof'thespacebetween the teeth themselves and that the-groups which contain the cutting teeth 4 and the single'pointed raker teeth and the cutting teeth 3, therefore it is practically impossiblefor'the dust to obstruct -;the cutting teeth. 7

It is thought from'jtheeforegoing description "that the advantages and novel features at my, inventionwill be readily apparent.

I desire it to be understood that I may make changes'in the construction and'in the combination and arrangement of the several parts, pro

vided that such; changes fall within the scope of the appendedclaim. I

WhatIc1aimis:' r p: I A saw blade "comprising a body; a group of cutting teeth arran ed substantially; midway the ends sa e be s; atdeu mmmarakemeom s o d ponb posite sides of the group,'with' their-innermost points spaced from the point mg the outer cutting teeth several tiines thedisr tance ofthe space between the respective cuttingteeth, teeth arranged in groups spaced from and ,upon the outer sides of the raker teeth and from each other the same distance as the space between said raker teeth and the outer cutting teeth, each of the last mentioned groups containing a pluraker tooth, the single pointed raker teeth being disposed in close proximity to the cutting teeth of 2 theirggroup' and outermost on the outer sides thereof, witniitheir points arrangedyacaordin 1y,''and said raker teeth being straight edged on their iacestransversely tothe plane of cut.

7 WALTER POLLEY.

: ra1ity of cutting teeth and one single pointed 7' r 

